What are the different ways to create a web-application in Java? Are there tools available other than straight-up servlets?

Open source web frameworks in Java and related view technologies: <ul> <li> Tapestry </li> <li> Apache Cocoon </li> <li> Apache MyFaces </li> <li> Spring MVC </li> <li>Google Web Toolkit (GWT)</li> <li>Java Server Faces (JSF)</li> <li> Apache Struts </li> <li> Turbine </li> <li>Seam</li> <li> Makumba </li> <li>Java Server Pages (JSP)</li> <li> Stripes </li> <li>OpenXava</li> <li>JPublish</li> <li>wingS </li> <li>Strecks </li> <li>AribaWeb </li> <li>Echo </li> <li>RIFE</li> <li>Anvil </li> <li>WebOnSwing </li> <li>Click </li> <li>ThinWire </li> <li>Facelets</li> <li>Wicket</li> </ul> Check http://java-source.net/open-source/web-frameworks for more options and to read a brief overview of each one.